Simpsonville, KY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Simpsonville, a city in Shelby County, Kentucky.
Overnight
70°F
Partly Cloudy
Partly cloudy, with a low around 70. East wind around 6 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Simpsonville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 70°F | Partly Cloudy | 6 mph E | 12% |
| Saturday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph S | 23% |
| Saturday Night | 70°F | Chance Showers And Thunderstorms | 6 mph S | 29% |
| Sunday | 91°F | Mostly Sunny | 6 to 9 mph SW | 13% |
| Sunday Night | 68°F | Mostly Cloudy then Slight Chance Rain Showers | 7 mph N | 19% |
| Monday | 83°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 9 mph NE | 46% |
| Monday Night | 63°F | Chance Showers And Thunderstorms | 8 to 12 mph NE | 49% |
| Tuesday | 76°F | Chance Rain Showers then Chance Showers And Thunderstorms | 9 mph NE | 46% |
| Tuesday Night | 60°F | Chance Showers And Thunderstorms | 6 to 10 mph NE | 46% |
| Wednesday | 72°F | Chance Rain Showers | 8 mph N | 31% |
| Wednesday Night | 58°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 8 mph N | 16% |
| Thursday | 72°F | Partly Sunny | 8 mph N | 8% |
| Thursday Night | 57°F | Partly Cloudy | 5 to 8 mph N | 7% |
| Friday | 72°F | Mostly Sunny | 6 to 9 mph N | 4% |
Forecast source: National Weather Service (api.weather.gov) for Simpsonville (38.217, -85.350). Updated through the day.
Growing snapshot for Simpsonville
Last spring frost
May 1
First fall frost
Oct 10
Growing season
161 days
Hardiness zone
6b
More local growing data for Simpsonville: nearby ZIP 40067 weather · frost dates · planting calendar · Kentucky frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Shelbyville 1 E, Ky (9.3 mi from Simpsonville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.